Safety and efficacy of abobotulinumtoxinA for hemiparesis in adults with upper limb spasticity after stroke or traumatic brain injury: a double-blind randomised controlled trial. Lancet Neurol. 2015 Oct;14(10):992-1001. doi: 10.1016/S1474-4422(15)00216-1.
It usually consists of a court of final appeal (called the  Supreme court  or  Constitutional court ), together with lower courts. In many jurisdictions the judicial branch has the power to change laws through the process of judicial review.
The Judicial Branch of the government is made up of judges and courts. Federal judges are not elected by the people. They are appointed by the president and then confirmed by the Senate. There is a hierarchy of federal courts in the United States. At lowest level are 94 U.S. District Courts which cover different regions of the country and handle most federal cases. Above the District Courts are the 13 Courts of Appeals. At the top of the Judicial Branch is the Supreme Court. The Supreme Court has the final say.